Microscopic-scale simulations of macroscopic flow patterns in non-equilibrium two-dimensional systems

V. Rosato, F. Cleri

Research output: Contribution to journalArticle

Abstract

We have used a molecular-dynamics simulation for reproducing the behaviour of a two-dimensional fluid flow submitted to external perturbations and embedded in a non-inertial reference frame. This simple model has been used to verify current hypotheses on the causes generating a cyclonic circulation in the North Tyrrhenian basin, provided one uses suitable perturbation strenghts scaled from the real-world dynamics. Results put in evidence that the onset of a stationary cyclonic circulation which superimposes to the S-N flow requires the simultaneous presence of an orthogonal and an anti-parallel stream. This finding is in agreement with the hypotheses suggested by a preliminary analysis of experimental data. The limits of such models are discussed together with possible extensions to reproduce mesoscopic systems, in order to simulate the coexistence of large- and small-scale dynamics. The model is particularly suited to deal with boundary conditions of general analytical shapes. © 1994 Società Italiana di Fisica.
Original languageEnglish
Pages (from-to)281 - 299
Number of pages19
JournalNuovo Cimento della Societa Italiana di Fisica C
Volume17
Issue number3
DOIs
Publication statusPublished - May 1994
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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